US20190069809A1 - Air Line Protection Coupling For A Catheter - Google Patents
Air Line Protection Coupling For A Catheter Download PDFInfo
- Publication number
- US20190069809A1 US20190069809A1 US16/175,658 US201816175658A US2019069809A1 US 20190069809 A1 US20190069809 A1 US 20190069809A1 US 201816175658 A US201816175658 A US 201816175658A US 2019069809 A1 US2019069809 A1 US 2019069809A1
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- United States
- Prior art keywords
- catheter
- lumen
- air
- connector
- washer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
- A61B5/036—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs by means introduced into body tracts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/16—Tube connectors; Tube couplings having provision for disinfection or sterilisation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/16—Tube connectors; Tube couplings having provision for disinfection or sterilisation
- A61M39/165—Shrouds or protectors for aseptically enclosing the connector
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/20—Closure caps or plugs for connectors or open ends of tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5086—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile for indicating if defective, used, tampered with or unsterile
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0247—Pressure sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/22—Arrangements of medical sensors with cables or leads; Connectors or couplings specifically adapted for medical sensors
- A61B2562/225—Connectors or couplings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
- A61B5/031—Intracranial pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1027—Quick-acting type connectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
- A61M2205/583—Means for facilitating use, e.g. by people with impaired vision by visual feedback
- A61M2205/584—Means for facilitating use, e.g. by people with impaired vision by visual feedback having a color code
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7527—General characteristics of the apparatus with filters liquophilic, hydrophilic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/917—Color
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S285/00—Pipe joints or couplings
- Y10S285/911—Glass
Definitions
- air-based pressure monitoring catheters are used in a number of medical applications to monitor pressure at various locations within a mammalian body.
- air-based pressure monitoring catheters may be inserted into the skull of a patient thereby permitting the external monitoring of intra-cranial pressure.
- these air-based pressure monitoring catheters comprise a catheter having an air lumen formed therein which communicates with a bladder positioned at or near its distal end.
- the catheter includes a connector located at or near its proximal end, which may be connected to an external pressure transducer.
- the media surrounding the bladder must be capable of movement to accommodate the variations in bladder volume as pressure changes.
- Air management systems such as those seen in U.S. Pub. No. 2007/0208270 and U.S. Pat. Nos. 6,447,462 and 8,360,988, which are all herein incorporated by reference, allow a user to adjust the amount of air in a system. For example, these systems allow a user to vent the air passage of the catheter to the open environment, then charge the passage with an amount of air. In this respect, the pressure in the resulting charged passage can be monitored and a pressure within the patient (e.g., within the patient's skull) can be determined.
- the air in these catheters with air-based pressure sensors must be free to move within the lumen without obstruction. If a small amount of water should get in the lumen, air is constrained from moving freely, preventing an accurate pressure reading from being determined.
- One embodiment of the present invention includes a catheter connector having a hydrophobic end cap or washer located around the end opening to the connector's lumen.
- the diameter and length of the lumen below the washer is sufficiently large enough to accommodate an absorbent tubular filter that changes color when exposed to fluid.
- the washer acts to limit the size of the water droplet that might adhere to the end of the catheter and help maintain surface tension on the droplet to prevent it from entering the lumen and also prevents the tubular filter from absorbing liquid, should the proximal end contact a small pool of liquid.
- the hydrophilic tubular filter absorbs any water that might pass by the washer and thus keeps the lumen hole open. Additionally, by changing color, the filter can alert a user that the connector has been potentially compromised with liquid.
- the connector is composed of one or more clear or transparent body components that allow a user to better see the color of the filter.
- FIG. 1 illustrates a simplified, side view of one embodiment of a pressure monitoring catheter, a connector, and an air management system according to the present invention.
- FIG. 2 illustrates a perspective view of an air management system according to the present invention.
- FIG. 3 illustrates a cross sectional side view of a connector for a pressure monitoring catheter.
- FIG. 4 illustrates an exploded cross-sectional side view of the connector of FIG. 3 .
- FIG. 5 illustrates a side view of the connector of FIG. 3 .
- FIG. 6 illustrates a cross sectional side view of the connector of FIG. 3 .
- FIG. 7 illustrates an exploded view of another embodiment for a pressure monitoring catheter.
- FIG. 8 illustrates an end view of the pressure monitoring catheter connector of FIG. 7 .
- FIG. 9 illustrates a cross section side view of the pressure monitoring catheter connector in FIG. 8 along lines A.
- FIG. 10 illustrates a top view of a female connector used with the pressure monitoring catheter connector of FIG. 7 .
- FIG. 11 illustrates an end view of the female connector of FIG. 10 used with the pressure monitoring catheter connector of FIG. 7 .
- the present invention is directed to a plug connector assembly 100 that helps prevent liquid from entering the air lumen of an air-based catheter system.
- a catheter 110 with an air bladder is connected to one end of a male connector 114 of the connector assembly 100 .
- the male connector 114 is sized and configured to couple with a female connector 125 of an air management system 126 .
- the air management system can be that shown in FIG. 2 , which is described in greater detail in U.S. Pat. No. 8,360,988, the contents of which are hereby incorporated by reference.
- a continuous passage 111 is created between the lumen of the male connector 114 and the catheter 110 , terminating at the end of the male connector 114 .
- the passage 111 connects to the passage 112 of the air management system 126 , allowing a desired amount of air to be injected into the catheter 110 and allowing a pressure transducer 128 to measure changes in the air pressure within the lumens 111 and 112 .
- the O-ring 116 on the connector 114 helps maintain the seal between the lumens 111 and 112 , thereby maintaining air pressure in the system.
- the male connector 114 includes a cap or washer 122 located within an inset area 119 and which is preferably composed of a hydrophobic material. As seen in FIGS. 5 and 6 , if a larger liquid droplet 12 or smaller water liquid 14 should attach itself to the end of the male connector 114 , the hydrophobic material of the washer 122 helps maintain the surface tension of the droplet 12 , preventing the liquid from entering the lumen 111 .
- the male connector 114 further includes a fluid absorbent, hydrophilic filter 120 , having a tubular shape through which the lumen 111 passes through and which is located adjacent to the hydrophobic washer 122 . If liquid does get pushed into the lumen 111 , the filter 120 will absorb the liquid, keeping the lumen 111 clear of liquid obstruction.
- a fluid absorbent, hydrophilic filter 120 having a tubular shape through which the lumen 111 passes through and which is located adjacent to the hydrophobic washer 122 . If liquid does get pushed into the lumen 111 , the filter 120 will absorb the liquid, keeping the lumen 111 clear of liquid obstruction.
- the filter 120 can further act as a warning system to the user, indicating that fluid has entered the lumen 111 and that the male connector 114 has been compromised.
- the body of the male connector 114 is composed of a clear material and the filter contains a material that changes color when exposed to water.
- the filter 120 can contain dried, food-grade dye, such as any FD&C rated food dye, such that when contacted by liquid, the dye causes the filter 120 to change to a bright color. Since the male connector 114 is composed of a clear material, the user can clearly see the color change and therefore can replace the male connector 114 on the catheter 110 .
- additional filter material 124 can be located at the end of the female connector 125 , around the opening to lumen 112 .
- filter 124 can absorb liquid and can further include a color-changing substance to indicate exposure to liquid.
- FIGS. 7-9 illustrate another embodiment of a male connector 200 that is generally similar to the previously described connector 114 .
- the connector 200 includes a body 202 , a lumen passage 214 , a tubular color-changing filter 206 , a hydrophobic cap/washer 208 , and an o-ring 204 .
- the connector 200 also includes a barbed end portion 212 that allows easy connection and disconnection to a catheter 110 . Also, a raised key region 210 aligns with a keyway 224 on the female connector 220 ( FIGS. 10 and 11 ), allowing connection of the male connector 200 at only a single rotational orientation. By allowing only a single rotational orientation, a latch mechanism can be included, latching the male connector 200 with the female connector 220 .
- the female connector Since pushing the male connector 200 into the female connector 220 can inject a significant and possibly undesirable amount of air into the lumens of the catheter 110 and air management system 126 , the female connector includes two venting channels 222 that allow air to escape as the male connector 200 is pushed in.
- the filter member has been described as tubular, other shapes are also possible, such as a plurality of elongated, axial filter strips or a conical tube.
- the hydrophobic cap or washer may be generally circular, square, rectangle, or any other shape.
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
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- Media Introduction/Drainage Providing Device (AREA)
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Abstract
Description
- This application is a continuation of and claims priority to U.S. patent application Ser. No. 14/643,997 filed Mar. 10, 2015 entitled Air Line Protection Coupling For A Catheter, issuing on Nov. 13, 2018 as U.S. Pat. No. 10,123,723, which claims benefit of and priority to U.S. Provisional Application Ser. No. 61/967,070 filed Mar. 10, 2014 entitled Air Line Protection System, both which are hereby incorporated herein by reference in their entireties.
- Presently, biologically compatible air-based pressure monitoring catheters are used in a number of medical applications to monitor pressure at various locations within a mammalian body. For example, air-based pressure monitoring catheters may be inserted into the skull of a patient thereby permitting the external monitoring of intra-cranial pressure.
- Currently, a number of air-based pressure monitoring catheters have been developed. Generally, these air-based pressure monitoring catheters comprise a catheter having an air lumen formed therein which communicates with a bladder positioned at or near its distal end. In addition, the catheter includes a connector located at or near its proximal end, which may be connected to an external pressure transducer.
- During use, the volume of the bladder attached to the catheter changes as pressure varies in accordance with Boyle's Law (P1V1=P2V2). As a result, the pressure of the gas within the catheter becomes equal to that of the environment surrounding the bladder. The media surrounding the bladder must be capable of movement to accommodate the variations in bladder volume as pressure changes.
- The use of air-based pressure monitoring catheters in low or negatively pressurized environments has proven problematic. When the proximal connector is open to atmospheric pressure in the process of periodically replacing air lost by diffusion through the bladder, the external pressure extant in the body site monitored on a bladder will expel residual air from the bladder. If the pressure is low or negative, a significant amount of residual air may remain in the bladder. The amount of air injected is intended to be sufficient to keep the bladder in an active state for a period of 8 hours. If this volume is added to the residual air in a bladder that has not been completely collapsed by the environment around it, the sum of the residual air and injected air exceed the intrinsic volume of a fully shaped bladder. Should this happen, a positive pressure is established in the bladder. The bladder is now unable to read pressure below the internal pressure created.
- Air management systems such as those seen in U.S. Pub. No. 2007/0208270 and U.S. Pat. Nos. 6,447,462 and 8,360,988, which are all herein incorporated by reference, allow a user to adjust the amount of air in a system. For example, these systems allow a user to vent the air passage of the catheter to the open environment, then charge the passage with an amount of air. In this respect, the pressure in the resulting charged passage can be monitored and a pressure within the patient (e.g., within the patient's skull) can be determined.
- To function properly, the air in these catheters with air-based pressure sensors must be free to move within the lumen without obstruction. If a small amount of water should get in the lumen, air is constrained from moving freely, preventing an accurate pressure reading from being determined.
- One embodiment of the present invention includes a catheter connector having a hydrophobic end cap or washer located around the end opening to the connector's lumen. The diameter and length of the lumen below the washer is sufficiently large enough to accommodate an absorbent tubular filter that changes color when exposed to fluid. The washer acts to limit the size of the water droplet that might adhere to the end of the catheter and help maintain surface tension on the droplet to prevent it from entering the lumen and also prevents the tubular filter from absorbing liquid, should the proximal end contact a small pool of liquid. The hydrophilic tubular filter absorbs any water that might pass by the washer and thus keeps the lumen hole open. Additionally, by changing color, the filter can alert a user that the connector has been potentially compromised with liquid. Preferably, the connector is composed of one or more clear or transparent body components that allow a user to better see the color of the filter.
- These and other aspects, features and advantages of which embodiments of the invention are capable of will be apparent and elucidated from the following description of embodiments of the present invention, reference being made to the accompanying drawings, in which
-
FIG. 1 illustrates a simplified, side view of one embodiment of a pressure monitoring catheter, a connector, and an air management system according to the present invention. -
FIG. 2 illustrates a perspective view of an air management system according to the present invention. -
FIG. 3 illustrates a cross sectional side view of a connector for a pressure monitoring catheter. -
FIG. 4 illustrates an exploded cross-sectional side view of the connector ofFIG. 3 . -
FIG. 5 illustrates a side view of the connector ofFIG. 3 . -
FIG. 6 illustrates a cross sectional side view of the connector ofFIG. 3 . -
FIG. 7 illustrates an exploded view of another embodiment for a pressure monitoring catheter. -
FIG. 8 illustrates an end view of the pressure monitoring catheter connector ofFIG. 7 . -
FIG. 9 illustrates a cross section side view of the pressure monitoring catheter connector inFIG. 8 along lines A. -
FIG. 10 illustrates a top view of a female connector used with the pressure monitoring catheter connector ofFIG. 7 . -
FIG. 11 illustrates an end view of the female connector ofFIG. 10 used with the pressure monitoring catheter connector ofFIG. 7 . - Specific embodiments of the invention will now be described with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The terminology used in the detailed description of the embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like numbers refer to like elements.
- The present invention is directed to a
plug connector assembly 100 that helps prevent liquid from entering the air lumen of an air-based catheter system. As seen inFIG. 1 , acatheter 110 with an air bladder is connected to one end of amale connector 114 of theconnector assembly 100. Themale connector 114 is sized and configured to couple with afemale connector 125 of anair management system 126. In one embodiment, the air management system can be that shown inFIG. 2 , which is described in greater detail in U.S. Pat. No. 8,360,988, the contents of which are hereby incorporated by reference. - As seen in
FIGS. 3 and 4 , acontinuous passage 111 is created between the lumen of themale connector 114 and thecatheter 110, terminating at the end of themale connector 114. When plugged into thefemale connector 125, thepassage 111 connects to thepassage 112 of theair management system 126, allowing a desired amount of air to be injected into thecatheter 110 and allowing apressure transducer 128 to measure changes in the air pressure within thelumens ring 116 on theconnector 114 helps maintain the seal between thelumens - Since the
lumens air management system 126 from accurately measuring pressure. In order to help prevent fluid into the system, themale connector 114 includes a cap orwasher 122 located within aninset area 119 and which is preferably composed of a hydrophobic material. As seen inFIGS. 5 and 6 , if a largerliquid droplet 12 orsmaller water liquid 14 should attach itself to the end of themale connector 114, the hydrophobic material of thewasher 122 helps maintain the surface tension of thedroplet 12, preventing the liquid from entering thelumen 111. - The
male connector 114 further includes a fluid absorbent,hydrophilic filter 120, having a tubular shape through which thelumen 111 passes through and which is located adjacent to thehydrophobic washer 122. If liquid does get pushed into thelumen 111, thefilter 120 will absorb the liquid, keeping thelumen 111 clear of liquid obstruction. - The
filter 120 can further act as a warning system to the user, indicating that fluid has entered thelumen 111 and that themale connector 114 has been compromised. In one embodiment, the body of themale connector 114 is composed of a clear material and the filter contains a material that changes color when exposed to water. For example, thefilter 120 can contain dried, food-grade dye, such as any FD&C rated food dye, such that when contacted by liquid, the dye causes thefilter 120 to change to a bright color. Since themale connector 114 is composed of a clear material, the user can clearly see the color change and therefore can replace themale connector 114 on thecatheter 110. - Optionally,
additional filter material 124 can be located at the end of thefemale connector 125, around the opening to lumen 112. Likefilter 120,filter 124 can absorb liquid and can further include a color-changing substance to indicate exposure to liquid. -
FIGS. 7-9 illustrate another embodiment of amale connector 200 that is generally similar to the previously describedconnector 114. For example, theconnector 200 includes abody 202, alumen passage 214, a tubular color-changingfilter 206, a hydrophobic cap/washer 208, and an o-ring 204. - As best seen in
FIG. 9 , theconnector 200 also includes abarbed end portion 212 that allows easy connection and disconnection to acatheter 110. Also, a raisedkey region 210 aligns with akeyway 224 on the female connector 220 (FIGS. 10 and 11 ), allowing connection of themale connector 200 at only a single rotational orientation. By allowing only a single rotational orientation, a latch mechanism can be included, latching themale connector 200 with thefemale connector 220. - Since pushing the
male connector 200 into thefemale connector 220 can inject a significant and possibly undesirable amount of air into the lumens of thecatheter 110 andair management system 126, the female connector includes two ventingchannels 222 that allow air to escape as themale connector 200 is pushed in. - It should be understood that while the shapes and sizes of various components have been described, variations on these components are also contemplated according to the present invention. For example, while the filter member has been described as tubular, other shapes are also possible, such as a plurality of elongated, axial filter strips or a conical tube. In another example, the hydrophobic cap or washer may be generally circular, square, rectangle, or any other shape.
- Although the invention has been described in terms of particular embodiments and applications, one of ordinary skill in the art, in light of this teaching, can generate additional embodiments and modifications without departing from the spirit of or exceeding the scope of the claimed invention. Accordingly, it is to be understood that the drawings and descriptions herein are proffered by way of example to facilitate comprehension of the invention and should not be construed to limit the scope thereof.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US16/175,658 US20190069809A1 (en) | 2014-03-10 | 2018-10-30 | Air Line Protection Coupling For A Catheter |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201461967070P | 2014-03-10 | 2014-03-10 | |
US14/643,997 US10123723B2 (en) | 2014-03-10 | 2015-03-10 | Air line protection coupling for a catheter |
US16/175,658 US20190069809A1 (en) | 2014-03-10 | 2018-10-30 | Air Line Protection Coupling For A Catheter |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/643,997 Continuation US10123723B2 (en) | 2014-03-10 | 2015-03-10 | Air line protection coupling for a catheter |
Publications (1)
Publication Number | Publication Date |
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US20190069809A1 true US20190069809A1 (en) | 2019-03-07 |
Family
ID=54016335
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/643,997 Active 2036-12-21 US10123723B2 (en) | 2014-03-10 | 2015-03-10 | Air line protection coupling for a catheter |
US16/175,658 Abandoned US20190069809A1 (en) | 2014-03-10 | 2018-10-30 | Air Line Protection Coupling For A Catheter |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US14/643,997 Active 2036-12-21 US10123723B2 (en) | 2014-03-10 | 2015-03-10 | Air line protection coupling for a catheter |
Country Status (5)
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US (2) | US10123723B2 (en) |
EP (1) | EP3116384B1 (en) |
JP (1) | JP6611740B2 (en) |
ES (1) | ES2763411T3 (en) |
WO (1) | WO2015138484A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3426332A1 (en) | 2016-03-11 | 2019-01-16 | Laborie Medical Technologies Corp. | Pressure catheter device |
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-
2015
- 2015-03-10 EP EP15762075.8A patent/EP3116384B1/en active Active
- 2015-03-10 ES ES15762075T patent/ES2763411T3/en active Active
- 2015-03-10 WO PCT/US2015/019749 patent/WO2015138484A1/en active Application Filing
- 2015-03-10 US US14/643,997 patent/US10123723B2/en active Active
- 2015-03-10 JP JP2016575605A patent/JP6611740B2/en active Active
-
2018
- 2018-10-30 US US16/175,658 patent/US20190069809A1/en not_active Abandoned
Also Published As
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EP3116384A1 (en) | 2017-01-18 |
EP3116384A4 (en) | 2017-04-12 |
JP2017510401A (en) | 2017-04-13 |
EP3116384B1 (en) | 2019-10-02 |
JP6611740B2 (en) | 2019-11-27 |
ES2763411T3 (en) | 2020-05-28 |
WO2015138484A1 (en) | 2015-09-17 |
US10123723B2 (en) | 2018-11-13 |
US20150250974A1 (en) | 2015-09-10 |
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